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34509139 = 747104891
BaseRepresentation
bin1000001110100…
…1000101010011
32101221020122021
42003221011103
532313243024
63231352311
7566215510
oct203510523
971836567
1034509139
1118530255
12b682697
1371c3512
144824307
153069de4
hex20e9153

34509139 has 8 divisors (see below), whose sum is σ = 40278528. Its totient is φ = 28949640.

The previous prime is 34509121. The next prime is 34509179. The reversal of 34509139 is 93190543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34509139 - 211 = 34507091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34509119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52117 + ... + 52774.

It is an arithmetic number, because the mean of its divisors is an integer number (5034816).

Almost surely, 234509139 is an apocalyptic number.

34509139 is a deficient number, since it is larger than the sum of its proper divisors (5769389).

34509139 is a wasteful number, since it uses less digits than its factorization.

34509139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104945.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 34509139 is about 5874.4479740653. The cubic root of 34509139 is about 325.5702461960.

The spelling of 34509139 in words is "thirty-four million, five hundred nine thousand, one hundred thirty-nine".

Divisors: 1 7 47 329 104891 734237 4929877 34509139